When you use Nook Color Tools to switch keyboards, if you select "Multi-Touch Keyboard" the original BN keyboard comes back (mine is also dated 1 Aug 2008 in system/apps). I nootered with the rooted 1.1 update.

Also, check the file date - I think that the keyboard always has to be named latinme.apk but that does not mean that the files are identical - my latinme.apk is 3,261,628 bytes with a timestamp of 01 Aug 2008 and gives me the original BN keyboard when I select multitouch in Nook Color Tools (and reboot after selection). If you don't have this file then that's why you get the DroidX keyboard

Rasenganfan, were you able to install it? I out it in my system /apps folder, changed the permissions, and tried to install. It went through the motions, but then gave me the error that the app didn't install.